I have had one each of the last few versions of the kindle, and I am a happy user. Now I have a paper-white unit and I am very content. I have several hundred books comprised of novels, and technical books about software engineering. Sure my iPhone has a kindle app, but the paper-white is so readable and does not suffer from needing to do too many things. As much as I like "rooting", I really don't feel any need to poke around inside the kindle firmware. I have a Mac Pro, a MacBook Pro, an iPad Air, and an iPhone5. Each has a role in my life. I don't want to program on my ereader. Relating only to it's capability, and not focusing on Amazon's business practices, I highly recommend the Kindle. The 3G wireless networking is free and you can purchase and download books while outside wifi zones. It is an extra bonus that the kindle app is available for most of my other devices. If I really have to, I can reference a technical book on my iPhone. Even if a kindle-killer did come along, I already own quite a vfew kindle books, and would want to stick with that for the time being.